Perhaps even bigger is the news that the Warthog model in Forza 4 is actually the version of the vehicle that will appear in Halo 4.

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Joking that it would be the slowest vehicle in Forza 4--topping off at just over 70mph--343 Industries' Frank O'Connor confirmed that the vehicle will not be drivable in Forza 4.

In the Auto Vista mode players can walk around and examine a number of vehicles in Forza 4 with either a controller of via Microsoft's Kinect peripheral. In the mode players can open car doors, start the vehicle, examine the engine, and learn more about the rare ride.

With the Warthog in Forza 4, players will be able to interact with it similarly to other Auto Vista vehicles; however, information about the ride will outline interesting tidbits about it and its relation to the upcoming Halo adventure. As another nod to fan service, Turn 10 has nabbed voice actor Jen Taylor--a.k.a the voice of Cortana--to detail information about the vehicle in Forza 4's Auto Vista mode.

Getting the vehicle won't be easy, though, Greenawalt said. According to Forza 4's director, the Halo 4 Warthog is an Easter Egg in the final version of the upcoming racing sim.

Forza 4 is scheduled to ship in October, exclusively for the Xbox 360.